The first American playwright of major literary status was Arthur Miller
Thorton wilder
Eugene O’Neil
Elmer rice

C.

Explanation:

Eugene O'Neill was the first American dramatist to regard the stage as a literary medium and the first U.S. playwright to receive the Nobel Prize for Literature

b. cronkite, a trusted television personality, declared that the war was unwinnable and told the american people that the government had better find a way out

even though it went against everything the news anchors typically stood for, cronkite voiced an opinion and took a stance, telling the us that there was no way they were going to win, the war was going to end in a stalemate. 

anxious,the clues in the question suggest he was embarrassed and anxious about boo radley.